Robert de Heydon - Pedigree | FamilyCentral
 Abt 1259 - Aft 1290
 Abt 1244 -
 Abt 1219 - 1271
 Abt 1184 - 1249
  Children
    1.
Peter Haydon
    2.
Rodger Haydon
    3.
Meraud Haydon
4.
Henry Haydon